Home / 45,669.10-68,502.69-21,045.10

Finding the Fourth Proportional to 45,669.10, 68,502.69 and 21,045.10

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Solution

The fourth proportional to 45,669.10, 68,502.69 and 21,045.10 is: 31,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,669.10 : 68,502.69 = 21,045.10 : x
  2. Step 2: Convert to fraction form
    45,669.10/68,502.69 = 21,045.10/x
  3. Step 3: Cross multiply
    45,669.10x = 68,502.69 × 21,045.10
  4. Step 4: Simplify right side
    45,669.10x = 1,441,645,961.32
  5. Step 5: Solve for x
    x = 1,441,645,961.32/45,669.10
  6. Step 6: Final answer
    x = 31,567.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.